Signal apparatus.



` R. BERRENBERG. SIGNAL APPARATUS.

APPLICATION FILED NOV.1B, 1908.

Patented Mar.14,191i.

Ilm-TED STATES PATENT 'OFFICE REINOLD BRRENBERG, OF QSTQN, MASSACHUSETTS.

' SIGNAL APPARATUS.

To all whom it may concern:

Be it. known' that I, Rumeno'liziuuzxnnao, a citizen of the 1United States, and resident of Boston, in the county of Sutfolk and State of Massachusetts, have invented a new and useful Improvement in Signal Apparatus, of which the following, taken in conncction with the accompanying drawings, is' a specification.

.\l v invention relates to a signal apparatus to be sounded when excessive speed is attained.

'lhe primary object of the invention is to provide an apparatus by which a signal will h(- soundecl when the mechanisnrto which it is' attached attains a greater Speed than is desirable.

.t further object is to )rovide a device of the class above described which shall indicate any desired number.

With the above objects in view the inven tion consists in the signal apparatus lierein after described and claimed, the advantages of which will be obvious to those skilled in the. art from the following description.

The invention will be readily understood t rom an inspection of the accompanying drawing in whicb Figure 1 is a side elevation-of the apparatus. a part being broken away to show the interior construction. and Fig. 2 is au end elevation of the same part-ly in section.

.\s shown in the drawings the whistle is indicated by A. which may be of any snitable kind. and is connected to an air compressor by a pipe B. The air compressor comprises a cylinder C having a piston D providedwith a stem E having a flat head G. spring F tends to draw the piston D i'ipwardly to the top of the compressor cyl- -inder. lever H, pivoted at I serves to de. press the. piston. which, in expelling air through the pipe B causes the whistle A to sound.

The device for operating the lever H- and through it causing'the whistle to sound may he described as follows Upon the base N two standards N1. N1 are' aixed as shown. These standards support the shaft M upon which a detent wheel. having detachable dctents or teeth L, L. is 'loosely mounted. This detent wheel consists of the central disk K which is made with a series of.re

to receive the shanks of the detents L, L.

Speclcatton of Letters Patent.

Application led November 18, 1908. Serial No. 465,301.

cessi-s or not ches-Zu which are constructed Patented Mar. 14, 1911.

lar 'IC- or any other Suitable device.

Rotation is given to the shaft M by a flexible shaft lV which may be connected with any of the moving parts of a machine or vehicle. The detent: wheel is connected to the shaft M by a clutch comprising the cupped member P?. attached' to the detent wheel so that said wheel will rotate vwith it,

ibut loosely mounted on the shaft, and a complementary member R adapted to engage said cupped member. The member R free to niove longitudinally along' the shaft M, being provided with a spline S. The moving part R of the clutch is caused to move into and out of action by a toggle device consisting of the toggle links T pivoted at one end to the partit and at the other end to the arms T1L of the bell crank levers T1= T2, which are pivoted at V2 to the sleeve V. said sleeve being secured to the shaft 'M by a pin V1.

Heavy weights T3 are connected to the free ends of the' arms T 2 of the bell crank levers, so that, when the shaft M turns at a velocity beyond the desired speed the weights '1"1 will move outwardly under centrifugal action, and thus canse thc toggle device to force the part R of the clutch to engage with the part I1 and cause the detent wheel to rotate and sound the alarm. The detenta L, L may be placed in any desired order so as to indicate any number; as placed in the drawing the number would be 2--3-1-1-2, that, is idl'.' it is obvious that any arrangement may be made so that any number may be sounded.

For convenience the operator may use the cord Y to give a signal, that is, cause the whistle to sound independently of the detent wheel.

W'hile I have illustrated and described a preferredl embodiment ot the invention, I am aware that. many modifications can be made therein by any person skilled in the. art. with-ont departing from the scope of the invent-ion as expressed in the claims.

Therefore I do not wish to be limited to all the details. of construction shown and described, but `What I claim is l. A signal apparatus, comprising. al

whistle, Aan air compressor, means connecting the compressor and whistle, a detent wheel7 means operat-ively related to said de- ,tent wheel for operating said compressor, and speed-controlled means for rotating said wheel.

2. A signal apparatus, comprising a whistle, an air compressor, means connectsaid clutch, w ereby when said shaft rotates l 4beyond a certain speed the clutch will conneet the shaft with said detent wheel to cause the latter to` rotate, and means for canoa? transmitting motion from said detent wheel to said air compressor.

4. A gnal apparatus, comprising a whistle, an air compressor, means connecting the compressor. and whistle, a detent wheel, a lever operatively related to said de- 'tent wheel for operating said compressor, a

rotary shaft, a clutch, and speed-controlled means for o rating said clutchto 4connect the detent w 'eel to the shaft. Y

5. In a signal a paratus, the combination of a detent wheel aving a series of Lrecesses in its periphery, detachable detents having their ShanksV receivable in said recesses, clamping disks arranged to press upon the Shanks of the detents to hold them in place,

a. clutch having one ymember connected to oneof said disks, a rotary shaft, speed-controlled means for operatmg'said clutch to connect the detent wheel to the shaft, and

a signal controlled by the detents, on said wheel.

In testimonywhereof, I have signed my name to thisspecicationin the presence of two subscribing witnesses, 'cn-this 14th day of November A.. D. 1908.V

REINOLD BERRENBERG.

Witnesses: FRANK G; PARKER,

JOHN Boorman.

asf 

